about + noun/pronoun
表示‘关于、对于’，后接名词或代词。
We had a discussion about the project.
我们就这个项目进行了讨论。
关于
即将；将要；在……周围；围绕；在……各处；到处；在……附近；忙于；从事
Concerning; with regard to; on the subject of.
围绕；四周；在外面；周围
In a circle around; all round; on every side of; on the outside of; around.
在不同地方；各处；来回；遍及
Over or upon different parts of; through or over in various directions; here and there in; to and fro in; throughout.
表示即将发生；表示计划或打算做某事
Indicates that something will happen very soon; indicates a plan or intention to do something.
关于；涉及；因为；在......方面
Concerning; with regard to; on account of; on the subject of.
忙于；从事；专注于
Concerned or occupied with; engaged in; intent on.
在附近；邻近；靠近
Within or in the immediate neighborhood of; in contiguity or proximity to; near, as to place.
在身边；随身
On one’s person; nearby the person.
在或靠近(某人)；作为属性附着于；在构成中或可支配
On or near (one's person); attached as an attribute to; in the makeup of, or at the command of.
We had a long discussion about the new project.
我们进行了一次关于新项目的长时间讨论。
用法提示：此处about表示“关于”，引出讨论的主题。
She is worried about her exam results.
她担心她的考试成绩。
用法提示：此处about表示“对于”，引出担忧的对象。
I read a book about ancient history.
我读了一本关于古代历史的书。
用法提示：此处about表示“关于”，说明书的内容主题。
表示‘关于、对于’，后接名词或代词。
We had a discussion about the project.
我们就这个项目进行了讨论。
后接动名词短语，表示‘关于做某事’。
He is worried about losing his job.
他担心失去工作。
后接疑问词引导的从句。
She asked me about where I lived.
她问了我关于我住在哪里的事。
grammar · medium
易错句子I talked about go to the store.
正确表达I talked about going to the store.
介词 about 后应接名词或动名词，不能接动词原形。
grammar · medium
易错句子We discussed about the plan.
正确表达We discussed the plan.
动词 discuss 是及物动词，直接接宾语，不需要介词 about。
regarding 更正式，常用于正式信函或公文；about 语气更中性、口语化。
concerning 较为正式，侧重直接涉及某个话题；about 更通用、更日常。
on 用于书籍、讲座等表示系统专门论述某主题；about 可泛指谈论或涉及，语气更宽泛。
谈论；讨论
We talked about the new project.
我们谈论了那个新项目。
担心；为……发愁
Don't worry about the little problems.
别为小问题担心。
了解；知道关于……的事
I don't know much about computers.
我对电脑不太了解。
在乎；关心
He really cares about his family.
他真的很关心他的家人。
考虑；思考
I need to think about your offer.
我需要考虑一下你的提议。
……怎么样？（用于提出建议或询问意见）
How about a cup of tea?
喝杯茶怎么样？
about + face
round + about
where + abouts
there + abouts
here + abouts
talk about sth 表示“谈论某事”，about 引出话题对象。
a book about sth 表示“关于某事的书”，about 提示主题。
a question about sth 表示“关于某事的问题”，about 指向疑问的对象。
an idea about sth 表示“对某事的想法”，about 引出思考对象。
a story about sb/sth 表示“关于某人或某事的故事”，about 说明故事的内容。
即将；正要
I was about to leave when the phone rang.
我正要离开时电话响了。
外出活动；四处走动
She is out and about again after her illness.
她病愈后又出来走动了。
早该发生的时候
It's about time you started studying for the exam.
你早该开始为考试复习了。
关键在于动力，关键在于力量，我们保持饥饿，我们吞噬一切。
This lyric from 'Surface Pressure' in the movie Encanto uses 'about' to mean 'concerning' or 'related to.'
这句话出自电影《魔法满屋》中的歌曲《压力》，用 about 表示‘关于’或‘与……有关’。
因为你知道我完全就是喜欢那种重低音，那种重低音，不要高音。
This chorus from Meghan Trainor's 2014 song 'All About That Bass' uses 'about' in the phrase 'be all about' to mean 'to be very interested in or enthusiastic about.'
这段副歌出自梅根·特雷纳2014年的歌曲《All About That Bass》，其中短语 be all about 中的 about 表示‘非常喜欢’或‘热衷于’。
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Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.